An improved wire bond is provided with the bond pads of semiconductor
devices and the lead fingers of lead frames or an improved conductive
lead of a TAB tape bond with the bond pad of a semiconductor device. More
specifically, an improved wire bond is described wherein the bond pad on
a surface of the semiconductor device comprises a layer of copper and at
least one layer of metal and/or at least a barrier layer of material
between the copper layer and one layer of metal on the copper layer to
form a bond pad.